Browse and install thousands of AI Agent skills in the Killer-Skills directory. Supports Claude Code, Windsurf, Cursor, and more.
This directory brings installable AI Agent skills into one place so you can filter by search, category, topic, and official source, then install them directly into Claude Code, Cursor, Windsurf, and other supported environments.
Convex-security-audit is a comprehensive security review pattern for Convex applications, covering authorization logic, data access boundaries, action isolation, rate limiting, and protecting sensitive operations.
fastify-typescript is an AI Agent skill that provides expert-level guidance for developing type-safe, high-performance APIs using the Fastify web framework and TypeScript. It enforces strict coding principles like avoiding the `any` type and mandates JSDoc for documentation.
replay-mcp is an AI Agent skill used to inspect the contents of replay.io recordings. These recordings are perfect captures of browser sessions, allowing for detailed investigation of web app behavior as if using a time machine to debug issues.
doc-creation is a set of conventions for creating and managing documents, including filename prefixes and placement within repositories and applications
design-md is a skill that synthesizes a Semantic Design System into a DESIGN.md file, serving as the source of truth for generating new screens that align with existing design language.
nuqs is a library for type-safe URL query state management in Next.js applications. It provides a set of best practices and rules for implementing, configuring, and optimizing search parameters, including integration with Server Components and parser configuration.
Inngest is a serverless integration platform that allows experts to build reliable background processing without managing infrastructure, focusing on durable, long-running workflows
Code-review-excellence is a skill that enables systematic analysis and collaborative improvement of code reviews through constructive feedback and review guidelines.
tailwind-design-system is an AI agent skill for building design systems with Tailwind CSS v4. It provides capabilities for CSS-first configuration, managing design tokens, creating component variants, and implementing responsive and accessible UI patterns for component libraries.
three-best-practices is an AI agent skill containing a comprehensive performance optimization guide for Three.js. It provides over 100 rules across 17 categories, based on official guidelines from the Three.js `llms` branch maintained by mrdoob.
mingri-coc7-knowledgebase-maintenance is a skill that maintains consistency across CoC7 knowledgebase data, including JSON files, TypeScript definitions, and caching strategies.
validate-parser is a skill that validates parsers within the lib directory, utilizing source code from lib/parser/, lib/crypto/, and lib/source/.